To be honest, she doesn't strike me as a true crackpot. Outside normal eating practices? Yes. Devoutly religious? Yes. Crackpot? Not quite.
Hell, I want about 8 children myself and, if I have the money, there won't be that much time between them; I am devout (albeit to my own faith) and all of us would be (or have been!) called "nuts" for our eating habits. Not so quick to judge, people.
It's interesting to watch, informative and, as she's doing it for faith (not to lose weight, make a point or "prove" it can be done), chances of her having fully stuck to it are pretty good.
I rarely talk to people about Paleo/Primal, but, when I do, it's when they're NOT complaining about their weight or health.
You see, I don't really "do" pity. And one thing I've learned about people is that they're more open to suggestion when they're happy and stable. When they complain they only ever want pity, not to be advised.